The FT-857, the world's smallest HF/VHF/UHF Mobile Transceiver, provides base station performance from an ultra-compact
package that's ideal for mobile or external battery portable work. Now with built-in Digital Signal Processing and coverage of the new U.S. 60-meter band, the FT-857D is the expert's choise for high-performance mobile operation!

Measuring just 6.1"x2"x9.2" (155x52x233mm), the FT-857D is the world's smallest full-power HF/VHF/UHF
multimode transceiver! Its rugged case design is a masterpiece of ergonomic design, with often - used switches and knobs conveniently positioned for easy access.

Borrowing extensively from the FT-897 transmitter design, the FT-857D1s rugged power amplifier section utilizes Bipolar Transistor devices, providing low noise, low distortion, and high reliability. On HF and 6 meters, you get 100 Watts of clean power output
, while on 2 meters you get 50 Watts out, and 20 Watts on 70 cm. Reliability is assured thanks to the extensive cooling system, featuring a thermostatically-controlled fan and aluminium diecast chassis.

Despite its compact size, the FT-857 is without peer in ease
of access to the features and functions you need the most!

•BIG-RADIO TUNING DIAL AND OUTSTANDING ERGONOMICS:

Ease of operation of the FT-857D is
enhanced by the large diameter 1.7" Main Tuning
Dial

(10 Hz steps minimum), similar
in size to the tuning knob of many base
station rigs.

What's more, the SELECT knob allows "channelized" tuning
in minimum steps of 1 kHz on SSB/CW, or
5 kHz on FM, for quick and easy tuning
around the band. All important keys are
strategically placed around the front panel,
for quick access.

•EASY-TO-USE "SCROLLING FRONT PANEL" KEYS:
The compactness of the FT-857D is made possible by the easy-to-use "multi-function" keys,
which allow adjustment of a number of transceiver
operating functions during operation. Pressing the
(FUNC) key allows selection of the operating function
row, using the Selector knob, and you may then press
the (A), (B), or (C) key, as needed, to change the
setting. One row of keys may also be custom-programmed
by the operator, allowing you quick access to a particularly
important set of functions or Menu items.

•
IF Shift:Use the IF SHIFT feature to vary the center frequency
of the IF passband, so as to eliminate interference above
or below the current operating frequency.•IF Noise Blanker:Optimized for use in the mobileenvironment,
the FT-857D includes a highly-effective IF Noise
Blanker specifically designed for suppression of
ignition and other pulse-type noises. The Noise
Blanker's threshold is adjustable via the Menu.•Intercept Point Optimization (IPO): For reception on the lower HF bands, where low
Noise Figure is not required, the IPO feature causes
the RF preamplifier to be bypassed, allowing direct
signal input to the first mixer. An input attenuator
is also provided for very noisy conditions.•Adjustable AGC:
The Automatic Gain Control (AGC) circuitry of the
FT-857D's receiver may be adjusted, by the operator,
for Slow or Fast recovery times. A convenient "Auto"
feature programs "Fast" AGC for CW, and "Slow" for
voice modes. And the AGC may also be turned off,
if desired, allowing manual gain control from the
front panel. •Clarifier (R.I.T.):For split-frequency pile-ups or to follow drifting
signals, the Clarifier control provides up to +-9.99
kHz of adjustment of the receiver's frequency, without
changing the transmit frequency. For wider-split
pileups, the "Split" mode allows you to use VFO-A
and VFO-B separately, too. •RF Gain Control :For noise reduction and/or variation of the AGC
system threshold, the Menu allows the front panel's
"Squelch" control to operate as an "RF Gain" control.•VOX:
For hands-free Voice operation, the VOX system
includes easy adjustments for both VOX Gain and
Delay. A separate setting is also provided for
receiver recovery time in the CW mode, as well.

Providing transmitter coverage
of the HF, 50 MHz, 144 MHz, and 430 MHz Amateur bands, the
FT-857D also includes receive coverage on 100 kHz to 56 MHz,
76 to 108 MHz, 118-164 MHz, and 420-470 MHz. Enjoy the excitement
of public safety monitoring, along with weather broadcasts,
AM and FM broadcasts, aviation communications, as well as
the action on the new U.S. 60-meter band!

Borrowing extensively from the FT-897 transmitter design, the FT-857D1s
rugged power amplifier section utilizes Bipolar Transistor devices, providing
low noise, low distortion, and high reliability. On HF and 6 meters, you get
100 Watts of clean power output
, while on 2 meters you get 50 Watts out, and 20 Watts on 70 cm.
Reliability is assured thanks to the extensive cooling system, featuring
a thermostatically-controlled fan and aluminium diecast chassis.

The quite, fast-acting local oscillator system of the FT-857D borrows extensively from the FT-847 and FT-897, using a Direct Digital Synthesizer (DDS) to achieve fast lock times and silky-smooth tuning in steps as fine as 10 Hz. The excellent carrier-to-noise ratio helps preserve spurious-free dynamic range in a crowded band, and the smooth tuning leaves you
with the feeling you're using an analog VFO.

For superior interference rejection and transmitter
"talk power", the FT-857D's DSP circuitry enhances both sides of the communications
circuit.

The Ft-857D's DSP Unit features
a 24-bit high-tech D/A chip for signal
processing.

•DSP BANDPASS FILTER:
Separate DSP Bandpass Filters for Voice and CW augment
the analog filters for enhanced interference rejection.
For Voice modes, you get 16 High-Pass Filter cutoff
frequency selections, and 32 Low-Pass Filter selections,
for a total of 512 combinations. And for CW, you
may choose bandwidths of 240 Hz, 120 Hz, or a razor-sharp
60 Hz. •DSP AUTO-NOTCH FILTER:To reduce interference caused by annoying
carriers within the audio passband, the DSP Auto-Notch provides
a significant reduction in the interference level. If multiple
carriers are present, the DSP will detect and notch all the
carriers present.•DSP NOISE REDUCTION:
The very effective Noise Reduction filter of the
FT-857D utilizes as many as 16 noise-reduction algorithmn,
for use in a wide variety of noise envitonments,
without introducing appreciable distortion on the
desired signal. Operator fatigue is reduced, and
signal-to-noise ratio is significantly enhanced.•DSP MICROPHONE EQUALIZER:To match the Ft-857D's TX audio response to the
waveform produced by your voice and the microphone
in use, the DSP system includes a four-position
Mic Equalizer circuit. The result is increased "talk power" as extraneous frequencies are suppressed allowing all available
power to be concentrated into your voice's pattern.

The FT-857D is without peer in
its array of most-asked for features for the CW expert! •Built-In Electronic Keyer:
The FT-857D's built-in Electronic Keyer includes
a weight control, as well as Menu capability to
reverse the "Dot" and "Dash" contacts on your connector.•CW Message Memory with Beacon Mode:
For repetitive "CQ TEST" and contest exchange messages,
the FT-857D includes a three-message
memory capability. The "Beacon" mode may be used to send a repetitive message out
continuously for up to four hours, ideal for 6-meter use during DX-peditions.•CW
Pitch/Sidetone Control:
The CW Pitch control allows the transmitted signal to be offset
400/500/600/700/800 Hz from "zero beat" with the receive frequency.
This adjustment simultaneously varies the center frequency of the RX passband (including the DSP BPF), as well as the CW Sidetone pitch. The Sidetone therefore serves as a "Spot" signal during tuning. •CW Trainer:
A popular feature of the FT-857D is the CW Trainer,
which will send five-character letters and/or numbers via the speaker,
so you can practice your CW reception even when the bands are dead!

For operation on a wide variety of digital modes,
including 1200/9600 bps FM packet, RTTY, SSTV, or PSK31, the rear-panel 6-pin mini-DIN
connector provides easy to Data I/O lines, plus PTT and Ground. For PSK-31 and other AFSK modes,
the injection sideband (USB/LSB) is selectable, along with BFO and Display
Shift and Digital "VOX" Gain level.

•Versatile Tone Control Selections:
Both CTCSS and DCS Encoder/Decoders are built in! For easy access to repeaters, a 50-tone CTCSS system works along with a
104-code Digital Code Squelch (DCS) in the FT-857D.For applications requiring split CTCSS/DCS access, a convenient "Split Tone"
feature is also provided, along with the ability to encode (only) CTCSS or DCS, if desired. •Automatic Repeator Shift:
On the 144 MHz and 430 MHz bands, the FT-857D will automatically activate
the repeater shift appropriate for the part of the band in which you are
operating.•Smart Search:
When visiting a new city, use the Smart Search system to scan
the FM/AM Mode for activity. When busy channels are found, they will be
automatically loaded into a special Smart Search memory bank, for easy recall.•Spectrum Scope:
If you have to be away from your radio for a few minutes, turn on the Spectrum Scope
to keep watch on band activity. The Spactrum Scope will create a bar-graph display of activity
on channels above and below your current operating frequency. egy adott frekvencia alatt és
felett a csatornák aktivitását.

•ARTS™
(Auto-Range Transponder System):
During Search-and-Rescue operations,
the ARTS feature will notify you if a
field station (for example, a low-power hand-held unit)
has gone out of communications range, so you can instruct
them to move to a better location.

To
enhance performance on both receive and transmit,
high-performance Collins Mechanical Filter options
are available for both SSB and CW. For SSB, the 2.3
kHz, 10-pole YF-122S option provides a very flat
passband response, for natural-sounding transmit
audio, along with excellent skirt selectivity. And
for CW the 500 Hz, 7-pole YF-122C and 300 Hz, 7-pole
YF-122CN options help separate signals on a crowded
band in a contest.

Yaesu FT-857 (FT 857, FT857): VERSATILE MEMORY SYSTEM!

The FT-857D provides up to 200 "Main" memory
channels, each of which may be named with an
Alpha-Numeric label of up to eight characters.
These 200 Memories may be separated into as many as 10 Memory Groups of 20 Memories
each. For added convenience, you also get a "Quick
Memory" and a "Home Channel" on each band,
plus Five pairs of band-limit memories, to let you restrict operation to a sub-band,
if you like.

Yaesu FT-857 (FT 857, FT857): HIGH-RESOLUTION DOT-MATRIX DISPLAY

The large 2.1"x0.69" (53.4x17.2 mm) multi-color
display provides easy-to-read indication of many operating functions. The color may be chosen
from among 32 different color selections, and may be
programmed to show different colors on each band, mode,
Memory Group, or even to track signal strength and power output by color!

Yaesu's patented ATAS-120
Active-Tuning Antenna System provides a compact,
yet efficient, automatically-adjusting antenna for mobile,
portable, or apartment-balcony use!
Utilizing DC voltages fed from the FT-857D, the ATAS-120
automatically adjusts its length longer or shorter,
with the FT-857D feeding a tiny amount of power for SWR detection by its
internal directional coupler.
When the best impedance match is found, tuning
automatically stops, and operation can begin.
Specifield for operation on the 7/14/21/28 MHz Amateur bands, the ATAS-120 contracts fully
for use on the 50/144/430 MHz bands, providing a low SWR for
local FM work (where vertical polarization is predominant).
And if you're an apartment dweller, use the optional
ATBK-100 Antenna Base Kit, which provides an outstanding counterpoise to ensure low-angle radiation on the VHF/UHF bands.